Search Results for author: Naoki Saito

Found 8 papers, 2 papers with code

Multiscale Hodge Scattering Networks for Data Analysis

no code implementations17 Nov 2023 Naoki Saito, Stefan C. Schonsheck, Eugene Shvarts

Our construction is based on multiscale basis dictionaries on simplicial complexes, i. e., the $\kappa$-GHWT and $\kappa$-HGLET, which we recently developed for simplices of dimension $\kappa \in \mathbb{N}$ in a given simplicial complex by generalizing the node-based Generalized Haar-Walsh Transform (GHWT) and Hierarchical Graph Laplacian Eigen Transform (HGLET).

Descriptive

The Scattering Transform Network with Generalized Morse Wavelets and Its Application to Music Genre Classification

no code implementations16 Jun 2022 Wai Ho Chak, Naoki Saito, David Weber

We propose to use the Generalized Morse Wavelets (GMWs) instead of commonly-used Morlet (or Gabor) wavelets in the Scattering Transform Network (STN), which we call the GMW-STN, for signal classification problems.

Genre classification Music Genre Classification

Monogenic Wavelet Scattering Network for Texture Image Classification

no code implementations25 Feb 2022 Wai Ho Chak, Naoki Saito

The scattering transform network (STN), which has a similar structure as that of a popular convolutional neural network except its use of predefined convolution filters and a small number of layers, can generates a robust representation of an input signal relative to small deformations.

Classification Image Classification

eGHWT: The Extended Generalized Haar-Walsh Transform

1 code implementation11 Jul 2021 Naoki Saito, Yiqun Shao

This article describes the details of the eGHWT best-basis algorithm and demonstrates its superiority using several examples including genuine graph signals as well as conventional digital images viewed as graph signals.

Natural Graph Wavelet Packet Dictionaries

1 code implementation18 Sep 2020 Alexander Cloninger, Haotian Li, Naoki Saito

We introduce a set of novel multiscale basis transforms for signals on graphs that utilize their "dual" domains by incorporating the "natural" distances between graph Laplacian eigenvectors, rather than simply using the eigenvalue ordering.

Underwater object classification using scattering transform of sonar signals

no code implementations11 Jul 2017 Naoki Saito, David S. Weber

In this paper, we apply the scattering transform (ST), a nonlinear map based off of a convolutional neural network (CNN), to classification of underwater objects using sonar signals.

Binary Classification Classification +3

Improving Sparse Representation-Based Classification Using Local Principal Component Analysis

no code implementations4 Jul 2016 Chelsea Weaver, Naoki Saito

The dictionary in SRC is replaced by a local dictionary that adapts to the test sample and includes training samples and their corresponding tangent basis vectors.

Classification Dimensionality Reduction +2

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